A steelmaker has 1.50 kg of steel containing 0.20% carbon by mass. The steelmaker adds only iron and carbon to make 2.50 kg of steel containing 0.80% carbon by mass. Assume that no material is lost.
Calculate the mass of carbon and the mass of iron that the steelmaker adds.
Give both answers in grams.
The new steel is used to make a chisel.
Explain why the composition of the new steel makes it suitable for this use.
136 exam-style questions on OCR GCSE Chemistry 6.1 Improving processes and products, covering 6.1.1 Extracting metals industrially and by electrolysis, 6.1.2 Life cycle assessment and recycling, 6.1.3 Biological methods of metal extraction, 6.1.4 The Haber process and the production of fertilisers, 6.1.5 Alloys and their uses, 6.1.6 Corrosion and its prevention, 6.1.7 Comparing and selecting materials, and 6.1.8 Industrial conditions, rate and position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.